Hebei Zexu Pipe Manufacturing Co., Ltd.
Hebei Zexu Pipe Manufacturing Co., Ltd.
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VSSJA-2 Type Double Flange Limit Expansion Joint Q235 Carbon Steel Double Flange Limit Expansion Joint/Expansion Joint
The double-flange limit expansion joint is composed of main components such as the main body, sealing ring, gland, and short expansion pipe. On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and the expansion amount is locked with a double nut. The pipeline can be freely expanded and contracted within the allowable expansion and contraction amount. Once the expansion and contraction amount is exceeded, it will be limited to ensure the safe operation of the pipeline. It is especially suitable for the connection in the pipeline with vibration or a certain slope and bend.
Brief introduction of double flange limit expansion joint
The double-flange limit expansion joint is composed of main components such as the main body, sealing ring, gland, and short expansion pipe. On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and the expansion amount is locked with a double nut. The pipeline can be freely expanded and contracted within the allowable expansion and contraction amount. Once the expansion and contraction amount is exceeded, it will be limited to ensure the safe operation of the pipeline. It is especially suitable for the connection in the pipeline with vibration or a certain slope and bend.
Installation of double flange limit expansion joints in this section
Double flange limit expansion joints are suitable for connecting both sides with flanges. During installation, adjust the connection length between the two ends of the product and the flange. It can be freely expanded and contracted within the range of expansion and contraction, and the expansion and contraction amount can be locked to ensure the safe operation of the pipeline. It is suitable for pipelines where both sides are connected with flanges. During installation, adjust the installation length between the two ends of the product and the flange, and raise funds diagonally to tighten the gland bolts evenly to make it into a whole with a certain amount of displacement, which is convenient for installation and maintenance When, adjust according to the site size. When working, the reverse axial thrust can be transmitted to the entire pipeline. It can reduce the pressure thrust (blind plate force) of the connected parts and compensate the pipeline installation error. The double-flange force transmission joint cannot absorb the axial displacement. The double-flange power transmission connection is mainly used for the loose sleeve connection of pumps, valves and other accessories.
Classification of folding double flange limit expansion joints
There are: BF (VSSJA-1) type single flange limit expansion joint, B2F (VSSJA-2) type double flange limit expansion joint, BY (SSJB-3) type gland type limit expansion joint, AY (SSJB) ) Type gland type expansion joint, flange type limit expansion joint, flange type loose sleeve expansion joint.
Model of Folding Double Flange Limit Expansion Joint
The B2F type double flange limit expansion joint adopts the GB/T12465-2002 standard, and the previous model of the double flange power transmission joint is VSSJAF.
Folding force transmission joint implementation standard
GB/T12465-2007, GB/T12465-2002, GB/T14414-1993.
Material of Folding Double Flange Limit Expansion Joint
The materials of double flange limit expansion joints: mainly Q235 carbon steel, stainless steel, cast steel, ductile iron, etc. Different materials and models are used for different purposes.
